The dynamics of a dark soliton has been investigated in a Bose-Einstein condensate with an external magnetic trap, and the effects of localized impurity on the dynamics are discussed by the variational approach based on the renormalized integrals of motion. The reciprocal movement of the dark soliton is discussed by performing a standard linear analysis, and it is found that the effects of the localized impurity depend strictly on the positive or negative value of the impurity strength corresponding to the repulsive or attractive impurity. The numerical results confirm the theoretical analysis, and show that the effects also depend on the effective nonlinear coefficient and the harmonic frequency.

WEB OF SCIENCETM Citations

Page view(s)

Google ScholarTM

Altmetric

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

The Library actively supports the
University’s mission by providing integrated and timely access to high
quality scholarly resources, an inspiring environment for intellectual
growth and discovery, with responsive and outreaching services...
[read more ]